“Meghan has had access to Harry’s most trusted aides since their relationship went public, so whether it’s advice on a business decision or handling a media issue, she’s been able to get advice whenever needed, and it’s been invaluable,” a source said.

“As they get closer to marriage, Meghan will receive more general advice from those close to Harry, whether it’s for public speaking or what to do at a state banquet.

“Everything she may be unsure about will be answered.”

Ahead of the spring 2018 wedding, Meghan, who does not yet have around-the-clock security, will also receive terrorism training from the Special Air Service, a special forces unit of the British Army, so she can protect herself in dangerous situations.

Cute footage from after Prince Harry and Meghan Markle's engagement interview gives intimate insight into the royal couple's relationship